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A076256 as a simple table

na(n)
01
10
2-2
3-2
40
56
60
724
80
9-24
1024
110
12-240
130
14120
150
16-720
170
182400
190
20-720
21-720
220
2315120
240
25-25200
260
275040
280
2940320
300
31-282240
320
33282240
340
35-40320
3640320
370
38-1451520
390
405080320
410
42-3386880
430
44362880
450
46-3628800
470
4843545600
490
50-91445760
510
5243545600
530
54-3628800

[1,0,-2,-2,0,6,0,24,0,-24,24,0,-240,0,120,0,-720,
 0,2400,0,-720,-720,0,15120,0,-25200,0,5040,0,
 40320,0,-282240,0,282240,0,-40320,40320,0,
 -1451520,0,5080320,0,-3386880,0,362880,0,-3628800,
 0,43545600,0,-91445760,0,43545600,0,-3628800]